import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/login'
import Home from './components/home'
import Welcome from './components/welcome'
import Users from './components/user/users'
import Rights from './components/power/rights'
import Roles from './components/power/roles'
import Cate from './components/goods/cate'

Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home', component: Home, redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate }
      ]
    }
  ]
})
// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //  to 将要访问的路径
  //  from 从哪个路径跳转而来
  //  next 放行函数: 1.next() 2.next('/login') 强制跳转
  if (to.path === '/login') return next()
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router
